Bicycle frame



FIG. 1 is a right side perspective view of a bicycle frame, the leftside being a mirror image of the right side view.

FIG. 2 is a view of the bicycle frame shown in position of use, with thebroken line illustration of other portions of a bicycle and environmentforming no part of the claimed design.

FIG. 3 is a top view of the bicycle frame of FIG. 1.

FIG. 4 is a bottom view of the bicycle frame of FIG. 1.

FIG. 5 is a front view of the bicycle frame of FIG. 1; and,

FIG. 6 is a rear view of the bicycle frame of FIG. 1.

The portions shown in broken and/or stippled lines do not form part ofthe design.

The ornamental design for a bicycle frame, as shown and described.